summaryrefslogtreecommitdiff
path: root/sysdeps/powerpc/powerpc64/power4
AgeCommit message (Collapse)AuthorFilesLines
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae4-4/+4
2013-12-13PowerPC: Cleaning up uneeded sqrt routinesAdhemerval Zanella2-108/+0
For PPC64, all the wrappers at sysdeps are superfluous: they are basically the same implementation from math/w_sqrt.c with the '#ifdef _IEEE_LIBM'. And the power4 version just force the 'fsqrt' instruction utilization with an inline assembly, which is already handled by math_private.h __ieee754_sqrt implementation.
2013-12-13PowerPC: multiarch memset/bzero for PowerPC64Adhemerval Zanella1-0/+2
2013-12-13PowerPC: Adjust multiarch Implies for PowerPC64Adhemerval Zanella3-0/+3
This patch adds Implies files on multiarch folder for POWER chips so multirach is enabled when building with --with-cpu and powerN option.
2013-12-06PowerPC: multiarch wordcopy routines for PowerPC32Adhemerval Zanella1-1/+0
2013-10-04PowerPC LE memsetAlan Modra1-15/+15
http://sourceware.org/ml/libc-alpha/2013-08/msg00104.html One of the things I noticed when looking at power7 timing is that rlwimi is cracked and the two resulting insns have a register dependency. That makes it a little slower than the equivalent rldimi. * sysdeps/powerpc/powerpc64/memset.S: Replace rlwimi with insrdi. Formatting. * sysdeps/powerpc/powerpc64/power4/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memset.S: Likewise. * sysdeps/powerpc/powerpc32/power4/memset.S: Likewise. * sysdeps/powerpc/powerpc32/power6/memset.S: Likewise. * sysdeps/powerpc/powerpc32/power7/memset.S: Likewise.
2013-10-04PowerPC LE memcpyAlan Modra1-1/+60
http://sourceware.org/ml/libc-alpha/2013-08/msg00103.html LIttle-endian support for memcpy. I spent some time cleaning up the 64-bit power7 memcpy, in order to avoid the extra alignment traps power7 takes for little-endian. It probably would have been better to copy the linux kernel version of memcpy. * sysdeps/powerpc/powerpc32/power4/memcpy.S: Add little endian support. * sysdeps/powerpc/powerpc32/power6/memcpy.S: Likewise. * sysdeps/powerpc/powerpc32/power7/memcpy.S: Likewise. * sysdeps/powerpc/powerpc32/power7/mempcpy.S: Likewise. * sysdeps/powerpc/powerpc64/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise. Make better use of regs. Use power7 mtocrf. Tidy function tails.
2013-10-04PowerPC LE memcmpAlan Modra1-326/+715
http://sourceware.org/ml/libc-alpha/2013-08/msg00102.html This is a rather large patch due to formatting and renaming. The formatting changes were to make it possible to compare power7 and power4 versions of memcmp. Using different register defines came about while I was wrestling with the code, trying to find spare registers at one stage. I found it much simpler if we refer to a reg by the same name throughout a function, so it's better if short-term multiple use regs like rTMP are referred to using their register number. I made the cr field usage changes when attempting to reload rWORDn regs in the exit path to byte swap before comparing when little-endian. That proved a bad idea due to the pipelining involved in the main loop; Offsets to reload the regs were different first time around the loop.. Anyway, I left the cr field usage changes in place for consistency. Aside from these more-or-less cosmetic changes, I fixed a number of places where an early exit path restores regs unnecessarily, removed some dead code, and optimised one or two exits. * sysdeps/powerpc/powerpc64/power7/memcmp.S: Add little-endian support. Formatting. Consistently use rXXX register defines or rN defines. Use early exit labels that avoid restoring unused non-volatile regs. Make cr field use more consistent with rWORDn compares. Rename regs used as shift registers for unaligned loop, using rN defines for short lifetime/multiple use regs. * sysdeps/powerpc/powerpc64/power4/memcmp.S: Likewise. * sysdeps/powerpc/powerpc32/power7/memcmp.S: Likewise. Exit with addi 1,1,64 to pop stack frame. Simplify return value code. * sysdeps/powerpc/powerpc32/power4/memcmp.S: Likewise.
2013-10-04PowerPC LE strcmp and strncmpAlan Modra1-8/+55
http://sourceware.org/ml/libc-alpha/2013-08/msg00099.html More little-endian support. I leave the main strcmp loops unchanged, (well, except for renumbering rTMP to something other than r0 since it's needed in an addi insn) and modify the tail for little-endian. I noticed some of the big-endian tail code was a little untidy so have cleaned that up too. * sysdeps/powerpc/powerpc64/strcmp.S (rTMP2): Define as r0. (rTMP): Define as r11. (strcmp): Add little-endian support. Optimise tail. * sysdeps/powerpc/powerpc32/strcmp.S: Similarly. * sysdeps/powerpc/powerpc64/strncmp.S: Likewise. * sysdeps/powerpc/powerpc32/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/power4/strncmp.S: Likewise. * sysdeps/powerpc/powerpc32/power4/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strncmp.S: Likewise. * sysdeps/powerpc/powerpc32/power7/strncmp.S: Likewise.
2013-06-05Remove trailing whitespace.Joseph Myers4-96/+96
2013-03-08Consolidate copies of mp code in powerpcSiddhesh Poyarekar3-221/+2
Retain a single copy of the mp code in power4 instead of the two identical copies in powerpc32 and powerpc64.
2013-03-07Merge powerpc slowexp.c into generic codeSiddhesh Poyarekar2-65/+1
2013-03-07Merge powerpc slowpow.c into generic codeSiddhesh Poyarekar2-93/+1
2013-03-07Use an intermediate variable to sum exponents in powerpc __mul and __sqrSiddhesh Poyarekar1-5/+6
2013-03-07Use generic mpa.c code for everything except __mul and __sqrSiddhesh Poyarekar1-628/+4
2013-03-06Remove powerpc64 bounded-pointers code.Joseph Myers4-53/+15
2013-02-28Sync up ppc add_magnitudes and sub_magnitudes with default codeSiddhesh Poyarekar1-52/+60
2013-02-25Sync up powerpc __mp_dbl with default codeSiddhesh Poyarekar1-3/+1
2013-02-21Mark __inv as static in powerpcSiddhesh Poyarekar1-1/+1
2013-02-21Fix whitespace differences between generic and powerpc mpa.cSiddhesh Poyarekar1-1/+1
2013-02-21Mark ZERO inputs to __mul as unlikely on powerpcSiddhesh Poyarekar1-1/+1
Syncs up with generic code.
2013-02-20Copy comment about inner loop from powerpc mpa.c to the default oneSiddhesh Poyarekar1-1/+1
2013-02-14Remove redundant return keywordSiddhesh Poyarekar1-13/+0
2013-02-14New __sqr function as a faster special case of __mulSiddhesh Poyarekar1-0/+100
2013-01-20Remove use of mpa2.hAndreas Schwab1-1/+0
2013-01-14Fix code formatting in mpa.cSiddhesh Poyarekar1-269/+534
This includes the overridden mpa.c in power4.
2013-01-14Remove unnecessary local variable mptwoSiddhesh Poyarekar1-4/+0
2013-01-09Update comments in mpa.cSiddhesh Poyarekar1-70/+49
Fixed comment style and clearer wording in some cases.
2013-01-07Fix spelling errors in sysdeps/powerpc files.Anton Blanchard5-27/+27
2013-01-04Remove unused __cr and __cpymnSiddhesh Poyarekar1-47/+0
2013-01-04Fix build failure on power4 processorsSiddhesh Poyarekar1-3/+7
The power4-specific mpa.c depended on some global variables that were removed by earlier patches. Also, it did not define mpone and mptwo.
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers9-10/+9
2013-01-01Add script to update copyright notices and reformat some to facilitate its use.Joseph Myers3-3/+3
2012-05-18[PowerPC] Remove -ftree-loop-linear from MakefilesTulio Magno Quites Machado Filho2-3/+3
In the past the "-ftree-loop-linear" switch provided a measurable improvement in performance for certain functions. At some point it was assigned as the responsibility of Graphite in GCC. It has been found that even with Graphite enabled these flags no longer perform any appreciable improvement over the baseline. Graphite now has some open bugs which need to be fixed in order for it to provide measurable performance improvements but it lacks active development. As a result some compiler distributors may disable Graphite. If Graphite is disabled then building GLIBC will fail if the "-ftree-loop-linear" switch is used. This patch removes the use of "-ftree-loop-linear" as unnecessary.
2012-03-09Use <> for math.h and math_private.h everywhere.Richard Henderson4-6/+6
Entire tree edited via find | grep | sed.
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert9-24/+15
2012-01-27Remove __STDC__ conditionals from libm.Joseph Myers2-14/+2
2011-04-22Fix whitespaces.Ulrich Drepper1-7/+6
2011-04-22Remove doubled words.Jim Meyering3-5/+5
2011-04-17Fix POWER4/POWER7 optimized strncmp to not read past differing bytesAndreas Schwab1-5/+6
2007-07-12* sysdeps/powerpc/powerpc32/power6/memset.S: Update comments.Ulrich Drepper3-6/+3
Specify .machine power6 to get ISA-V2.0 branch hints. Unroll loops and avoid branch misspredicts for > 31 bytes memset case. * sysdeps/powerpc/powerpc64/power6/memset.S: Likewise. Remove toc ref to __cache_line_size. * sysdeps/powerpc/powerpc32/power4/memcmp.S: Specify .machine power4 to get ISA-V2.0 branch hints. * sysdeps/powerpc/powerpc32/power4/memcpy.S: Likewise * sysdeps/powerpc/powerpc32/power4/memset.S: Likewise * sysdeps/powerpc/powerpc32/power6/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memset.S: Likewise. Remove toc ref to __cache_line_size. * sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: Include math_ldbl_opt.h.
2007-06-03* sysdeps/powerpc/powerpc32/970/fpu/Implies: New file.Ulrich Drepper13-0/+2702
* sysdeps/powerpc/powerpc32/power5/fpu/Implies: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/Implies: New file. * sysdeps/powerpc/powerpc32/power6/fpu/Implies: New file. * sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file. * sysdeps/powerpc/powerpc64/970/fpu/Implies: New file. * sysdeps/powerpc/powerpc64/power5/fpu/Implies: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/Implies: New file. * sysdeps/powerpc/powerpc64/power6/fpu/Implies: New file. * sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/970/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/power4/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/power5/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/power5+/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/power6x/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/970/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/power4/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/power5/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/power5+/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/power6x/fpu/Implies: New file. 2007-05-31 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: Move. * sysdeps/powerpc/powerpc32/power4/fpu/s_llrint.S: To here. * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: Move. * sysdeps/powerpc/powerpc32/power4/fpu/s_llrintf.S: To here. * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: Move. * sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: To here. * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: Move. * sysdeps/powerpc/powerpc32/power4/fpu/s_llroundf.S: To here. 2007-05-22 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S (LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1. * sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S (LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1. * sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S (LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1. * sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S (LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1. 2007-05-21 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power4/fpu/slowexp.c: New file. * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c: New file. * sysdeps/powerpc/powerpc64/power4/fpu/slowexp.c: New file. * sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c: New file. 2007-03-15 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S [LONG_DOUBLE_COMPAT]: Add compat_symbol for llrintl@@GLIBC_2_1. 2006-02-13 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: New File * sysdeps/powerpc/powerpc32/power6/fpu/s_llrintf.S: New File * sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: New File * sysdeps/powerpc/powerpc32/power6/fpu/s_llroundf.S: New File 2006-10-20 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c: New file. * sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c: New file. 2006-10-03 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: New file. * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: New file. * sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: Moved. * sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/Makefile: To here. * sysdeps/powerpc/powerpc32/power4/fpu/mpa.c: Likewise. 2006-09-29 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: New file. * sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: New file. * sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: New file. * sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: New file. 2006-09-28 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_llroundf.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: New file. * sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: New file. * sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file. 2006-08-31 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: New file. * sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: New file. * sysdeps/powerpc/powerpc64/power4/fpu/Makefile: New file. * sysdeps/powerpc/powerpc64/power4/fpu/mpa.c: New file. 2006-06-15 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power5+/fpu/s_ceil.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_roundf.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S: New file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_truncf.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S: New file. * sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: New file. 2006-03-20 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: New file. * sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: New file. 2007-06-01 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power6/memset.S: New file. * sysdeps/powerpc/powerpc64/power6/memset.S: New file. 2007-05-31 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/970/Implies: New file. * sysdeps/powerpc/powerpc32/power5/Implies: New file. * sysdeps/powerpc/powerpc32/power5+/Implies: New file. * sysdeps/powerpc/powerpc32/power6/Implies: New file. * sysdeps/powerpc/powerpc32/power6x/Implies: New file. * sysdeps/powerpc/powerpc64/970/Implies: New file. * sysdeps/powerpc/powerpc64/power5/Implies: New file. * sysdeps/powerpc/powerpc64/power5+/Implies: New file. * sysdeps/powerpc/powerpc64/power6/Implies: New file. * sysdeps/powerpc/powerpc64/power6x/Implies: New file. 2007-05-21 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power4/memset.S: New file 2007-03-13 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc64/memcpy.S: Improve aligned loop to minimize branch miss-predicts. Ensure that cache line crossing does not impact dispatch grouping. 2006-12-13 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc64/power4/memcopy.h: Replace with include "../../powerpc32/power4/memcopy.h". * sysdeps/powerpc/powerpc64/power4/wordcopy.c: Replace with include "../../powerpc32/power4/wordcopy.c". 2006-10-03 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/powerpc64/Makefile: Moved. * sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: Likewise. * sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: Likewise. * sysdeps/powerpc/powerpc32/power4/Makefile: To here. * sysdeps/powerpc/powerpc32/power4/memcopy.h: Likewise. * sysdeps/powerpc/powerpc32/power4/wordcopy.c: Likewise. 2006-09-10 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power6/memcpy.S: New file. 2006-08-31 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power6/wordcopy.c: New file. * sysdeps/powerpc/powerpc32/powerpc64/Makefile: New file. * sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: New file. * sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: New file. * sysdeps/powerpc/powerpc64/power4/Makefile: New file. * sysdeps/powerpc/powerpc64/power4/memcopy.h: New file. * sysdeps/powerpc/powerpc64/power4/wordcopy.c: New file. * sysdeps/powerpc/powerpc64/power6/wordcopy.c: New file. 2006-07-06 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc64/power6/memcpy.S: New file. 2006-03-20 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc32/power4/memcmp.S: New file. * sysdeps/powerpc/powerpc32/power4/memcpy.S: New file. * sysdeps/powerpc/powerpc32/power4/memset.S: New file. * sysdeps/powerpc/powerpc32/power4/strncmp.S: New file. * sysdeps/powerpc/powerpc64/power4/memcmp.S: New file. * sysdeps/powerpc/powerpc64/power4/memcpy.S: New file. * sysdeps/powerpc/powerpc64/power4/strncmp.S: New file.
generated by cgit v1.2.3 (git 2.39.1) at 2025-09-01 04:19:37 +0000